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The Persian Developmental Sentence Scoring As a Clinical Measure of Morphosyntax in Children



Jalilevand N1 ; Kamali M2 ; Modarresi Y3 ; Kazemi Y4
Authors
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Authors Affiliations
  1. 1. Department of Speech and Language Pathology, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
  2. 2. Department of Rehabilitation Management, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran
  3. 3. Department of Linguistics, Institute for Humanities and Cultural Studies, Tehran, Iran
  4. 4. Department of Speech Therapy, Faculty of Rehabilitation, Isfahan University of Medical Sciences, Isfahan, Iran

Source: Medical Journal of the Islamic Republic of Iran Published:2016

Abstract

Background: Developmental Sentence Scoring (DSS) was developed as a numerical measurement and a clinical method based on the morphosyntactic acquisition in the English language. The aim of this study was to develop a new numerical tool similar to DSS to assess the morphosyntactic abilities in Persian-speaking children. Methods: In this cross-sectional and comparative study, the language samples of 115 typically developing Persian-speaking children aged 30 - 65 months were audio recorded during the free play and picture description sessions. The Persian Developmental Sentence Score (PDSS) and the Mean Length of Utterance (MLU) were calculated. Pearson correlation and one - way Analysis of variance (ANOVA) were used for data analysis. Results: The correlation between PDSS and MLU in morphemes (convergent validity) was significant with a correlation coefficient of 0.97 (p < 0.001). The value Cronbach's Alpha (α= 0.79) in the grammatical categories and the split-half coefficient (0.86) indicated acceptable internal consistency reliability. Conclusion: The PDSS could be used as a reliable numerical measurement to estimate the syntactic development in Persian-speaking children.
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